Title TBA - June 20, 2022

Dr. Alice Kunin

Department of Physics, SUNY, Stonybrook, NY

May 16, 2022 & May 23, 2002 - No talks while Dr. Petek scouts for speakers in Holland and Spain

"Floquet engineering of Quantum Materials" - May 9, 2022

Prof. Takashi Oka

Functional Materials Group, Institute of Solid State Physics, The University of Tokyo, Kashiwa, Japan


"The Huygens Principle of Angle-Resolved Photoemission" - May 2, 2022

Dr. Simon Moser

Experimental Physics 4, Julius-Maximilians-Universität, Physikalisches Institut


"Design of Novel Carbon Nanostructures via Surface Reactions” - April 25, 2022

Dr. Qitang Fan

University of Science and Technology of China

"Optical Skyrmions" - April 18, 2022

Dr. Yijie Shen

Senior Research Fellow, Nanophotonics & Metamaterials Group, Optoelectronics Research Centre, University of Southampton

"Ultrafast excitation of 4f orbital states - a new pathway to control magnetic order in metals"

April 11, 2022

Dr. Nele Thielemann-Kühn

Freie Universität Berlin, Institut für Experimentalphysik, AG Weinelt (Ultrafast Surface Dynamics)

"Probing Electron-Lattice Interactions in ZrTe5 with Ultrafast Electron Diffraction"

April 4, 2022

Dr. Tatiana Konstantinova

Postdoctoral Research Associate, National Synchrotron Light source-II, Brookhaven National Laboratory

"Ultrafast optical modulation of harmonic generation and laser melting" - March 28, 2022

Hui Zhao

The Institute for Physics, Chinese Academy of Science

"In situ metalation of porphyrins on  metal and oxide surfaces” - March 21, 2022

Prof. Dr. Hans-Peter Steinrück

Chair of Physical Chemistry II, Friedrich-Alexander-Universität, Universität Erlangen-Nürnberg

"Probing Hot Electron Dynamics in Strongly Anharmonic Lattices with tr-ARPES"

March 14, 2022

Dr. Yanan Dai

Postdoctoral Scientist, Department of Chemistry, XYZ Group, Columbia University

"Spin photonics: From transverse spin to photonic chiral textures'' - March 7, 2022

Dr. Peng Shi

Nanophotonics Centre, Shenzhen University

"Toward ultrafast control of Dirac electrons: photoexcitation & coherent phonons in topological semimetals"

February 28, 2022

Chris Weber

College of Arts  and Sciences, Santa Clara University, Santa Clara CA


"First-principles simulation of laser driven structural engineering" - February 21, 2022

Dr. Mengxue Guan

State Key Laboratory for Surface Physics

The Institute of Physics, Chinese Academy of Sciences

"Tracing ultrafast hot electron and coherent phonon dynamics with STM” - February 14, 2022

Dr. Melanie Müller

Fritz Haber Institute

Department of Physical Chemistry

"Atomic chiral orbital Bose-Einstein condensates with topological excitations” - February 7, 2022

Vincent Liu

Professor of Physics, Department of Physics & Astronomy, University of Pittsburgh

"Multidimensional Multiphoton Momentum Microscopy of the Anisotropic Ag(110) Surface"

January 31, 2022

Andi Li

Doctoral Student in the Laboratory of Ultrafast Dynamics, Department of Physics & Astronomy, University of Pittsburgh

"When nanoparticles get hot" - January 24, 2022

Dr. Francesco Bisio

CNR-SPIN Genova, Italy

"Transferring structure from light to currents for structured terahertz magnetic impulses"

January 17, 2022

Shawn Sederberg

Assistant Professor, School of Engineering Science, Simon Fraser University

Prior Affiliation (where the work is ongoing): Joint Attosecond Science Laboratory, Department of Physics, University of Ottawa

"Strain-induced one-dimensional electronic bands visualizing the strain in real space"

10:00 AM, January 3, 2022

Dr. Min Feng

Professor, Laboratory of Microscopic Surface Science, School of Physics and Technology, School of Physics and Technology, Wuhan University, Wuhan, China

December 27, 2021 - Christmas Holiday

"Introduction into Floquet theory based on periodically driven Dirac systems"

December 20, 2021

M. Sc. Vanessa Junk

Institut fuer Theoretische Physik, Lehrstuhl Richter, Universitaet Regensburg

"Excitonic quantum interference in monolayer and twisted bilayer semiconductors"

December 13, 2021

Kai-Qiang Lin

Department of Physics, University of Regensburg, Germany

"Atomically probing molecular triplet lifetimes by electric pump-probe AFM"

December 6, 2021

Jinbo Peng

Jascha Repp group, Institute of Experimental and Applied Physics, University of Regensburg

(Current affiliation) Graduate School of Pure and Applied Sciences, University of Tsukuba, Japan

"Charge transfer and exciton formation dynamics in TMDCs imaged by time-resolved momentum microscopy" - November 29, 2021

Robert Wallauer

Philipps-Universität Marburg, Marburg, Germany

"Multiphoton Photoemission from the Layered Materials of Graphite, Black phosphorus and 2H-MoS2" - November 22, 2021

Shijing Tan

University of Science and Technology of China (USTC)

"Nanoimaging the 2D properties of black phosphorus" - November 15, 2021

Sarah King

Neubauer Family Assistant Professor, Department of Chemistry and James Franck Institute, The University of Chicago

Ultrafast nanoscopy of collective excitations and interlayer charge transfer in van der Waals crystals” - November 8, 2021

Dr. Fabian Mooshammer

Feodor-Lynen Fellow (Alexander von Humboldt Foundation)

and Postdoctoral Research Scientist at Columbia University

"Ultrafast electron dynamics in rutile TiO2(110)" - October 25, 2021

Namitha Ann James

Laboratory of Ultrafast Dynamics, University of Pittsburgh

"Ultrafast carrier dynamics and transient band structure changes in fullerene thin films"

October 11, 2021

Benjamin Stadtmüller

University of Kaiserslautern and Research Center OPTIMAS, Germany

University of Mainz, Germany

“Poincaré Engineering of Matter by Vectorial Optical Fields” - October 4, 2021

Dr. Hrvoje Petek

R. K. Mellon Professor, Laboratory of Ultrafast Dynamics, Department of Physics and Astronomy, University of Pittsburgh

"Plasmonic and Magnetic Dichroism Imaging of Magnetic Surfaces in Photoemission Electron Microscopy" - September 27, 2021

Maximilian Paleschke

Institute of Physics, Martin-Luther-Universität Halle-Wittenberg

"Attosecond screening at the Giant Resonance of titanium" - September 20, 2021

Mikhail Volkov

Research Group Peter Baum, Universität Konstanz

"Non-Einsteinian Excitation of Electrons by Surface Plasmon Polaritons” - September 13, 2021

Mr. Michael Hartelt

Technical University Kaiserslautern, Kaiserslautern, Germany

September 6, 2021 - Labor Day Holiday

"Charge dynamics at semiconductor surfaces investigated by time resolved Scanning Tunneling Microscopy" - August 30, 2021

Martin Wenderoth

4th Physical Institute – Solid State and Nanostructures, University of Göttingen, Germany


"Time-resolved second harmonic generation spectroscopy of Fe-porphyrin/Cu(001)"

August 23, 2021

Dr. Andrea Eschenlohr

University Duisburg-Essen, Faculty of Physics

"ARPES theory of graphene-based moiré superlattices and broken flavor-symmetry states in magic-angle twisted bilayer graphene (MATBG)" - August 16, 2021

Dr. Jihang Zhu

Max Planck Institute for the Physics of Complex Systems, Dresden, Germany


August 9, 2021 - Summer Holiday

"Graphene growth and Modulation of the SHG in MoS2 by graphene" - August 2, 2021

Chunchun Wu

Peking University/University of Pittsburgh

"Localized Spoof Plasmon Skyrmions with Topology Robustness and Extremely Subwavelength Footprint" - July 26, 2021

Zi-Lan Deng

Institute of Photonics Technology Jinan University

July 5, 2021 - Independence Day Holiday

"Lightwave control of van der Waals quantum materials" - June 28, 2021

Dr? Christoph Schmidt

University of Regensburg, Germany

“Ultrafast transmission electron microscopy of a structural phase transition" - June 21, 2021

Mr. Thomas Danz

Georg-August-Universität Göttingen

“Topological excitations in 1D and 2D materials for topologically protected informatics”

June 14, 2021

Prof. Han Woong Yeom

Center for Artificial Low Dimensional Electronic Systems, POSTECH, Pohang, Korea

"A topological lattice of plasmonic merons" - June 7, 2021

Ms. Atreyie Ghosh

University of Pittsburgh

May 31, 2021 - Memorial Day Holiday

"Quantitative sampling of atom-scale near-field waveforms" - May 24, 2021

Ms. Carmen Roelcke

University of Regensburg

"How to trap a charge carrier on molecule at TiO2 surface" - May 17, 2021

Dr. Weibin Chu

University of Southern California

"A window into the atomic world: Towards sub-cycle terahertz imaging of ultrafast electron dynamics on the atomic scale" - May 10, 2021

Dr. Vedran Jelić

Michigan State University

"Time-resolved ARPES of Excitons in monolayer WSe2 - the dark side of the exciton and the traumatic sudden separation" - May 3, 2021

Prof. Keshav M. Dani

Femtosecond Spectroscopy Unit, Okinawa Institute of Science and Technology

"Ultrafast screening of image potential electrons" - April 26, 2021  

Dr. Yanan Dai

Columbia University

“Excitons and Polaritons in van der Waals Heterostructures" - April 19, 2021

Hui Deng

Professor in Physics, University of Michigan, Ann Arbor, MI 48109

"Light field manipulation from classical to quantum based on both linear and nonlinear processes" - April 12, 2021

Dr. Zhi-Yuan Zhou

Associate Professor, School of Physics, University of Science and Technology of China


"Magic with Acoustic Metamaterials" - April 5, 2021

Prof. Oliver Wright

Division of Applied Physics, Hokkaido University


"Giant enhancement of optical nonlinearity in two-dimensional materials by multiphoton-excitation resonance energy transfer from quantum dots" - March 29, 2021

Chunchun Wu

Peking University

"Towards Atomic-Scale Optical Spectroscopy" - March 22, 2021

Takashi Kumagai

Institute for Molecular Science, Japan, and Fritz-Haber Institute, Germany

"Tracing orbital images on ultrafast timescales" - March 15, 2021

Dr. Robert Wallauer

Philipps-Universität Marburg, Marburg, Germany

"Cavity-Enhanced Ultrafast Spectroscopy" - March 8, 2021

Thomas Allison

Departments of Chemistry and Physics

"Tracking a single bond breaking with a joint STM-AFM-TERS strategy" - March 1, 2021

Dr. Shijing Tan

Professor, Hefei National Laboratory for Physical Sciences at the Microscale, USTC, China

"Tracking signatures of quantum geometry in time- and angle-resolved photoemission spectroscopy" - February 22, 2021

Michael Schüler

Alexander-von-Humboldt Fellow and postdoctoral research at Stanford University  

"Dirac semimetals and their material predictions" - February 15, 2021

Prof. Hongming Weng (翁红明)

Institute of Physics, Chinese Academy of Sciences, Beijing

"Visualizing Charge and Spin Dynamics at Catalytic Interfaces" - February 8, 2021

L. Robert Baker

Department of Chemistry and Biochemistry, Ohio State University

Co-Director, NSF NEXUS

"Engineering emergent states in quantum materials with classical and quantum light"

February 1, 2021

Michael Andreas Sentef

Max Planck Institute for the Structure and Dynamics of Matter, Hamburg, Germany

"Optically induced intersite spin transfer in ferromagnetic alloys and compound systems"

January 25, 2021

Daniel Steil

I. Institute of Physics, University of Göttingen, Germany

"Electrodynamics and Non-reciprocal Photonics in Topological Quantum Matter"

January 18, 2021

Prof. Prineha Narang

John A. Paulson School of Engineering and Applied Sciences at Harvard University

”Nonlinear response of Dirac materials” - January 11, 2021

Habib Rostami

Assistant professor, Nordic Institute for Theoretical Physics(NORDITA)

"Shaping the Topology of Light on the Microscale" - December 21, 2020

Natalia M. Litchinitser

OSA, APS Fellow, Professor of Electrical and Computer Engineering, Professor of Physics, Duke University

"Fourier optical preprocessing in lieu of deep learning” - December 14, 2020

Professor Luat Vuong

Multimodal Optics Group, UC Riverside

“Multimodal probes of electron-phonon coupling in quantum materials” - December 7, 2020

Jonathan Sobota

SLAC National Accelerator Lab, Stanford University

"Hot-phonon physics in MgB2 triggered by anisotropic electron-phonon coupling”

November 30, 2020

Dr. Emmanuele Cappelluti

Istituto di Struttura della Materia (CNR), Trieste Italy

November 23, 2020 - Thanksgiving Holiday - No seminar.

"Quantum Plasmonics: Going Beyond Freshman Physics" - November 16, 2020

Dr. Hrvoje Petek

R. K. Mellon Professor, Laboratory of Ultrafast Dynamics, Department of Physics and Astronomy, University of Pittsburgh

"Emerging order from real to imaginary time crystal" - November 9, 2020

Prof. Vicent Liu

Department of Physics & Astronomy, University of Pittsburgh

"Non-radiating anapole mode in optical metamaterials” - November 2, 2020

Prof. Pin Chieh Wu

Assistant Professor, Department of Photonics, National Cheng Kung University

"Growth and Characterization of Group 2 metal honeycomb: Ca/Ag(111)"

October 26, 2020

Heeseon Lim, Ph.D.

Laboratory of Ultrafast Dynamics, Department of Physics & Astronomy, University of Pittsburgh

"Atomically precise graphene nanoribbons and heterojunctions: synthesis and properties"

October 19, 2020

Dr. Chuanxu Ma

Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China

"Deterministic control of an antiferromagnetic spin arrangement using ultrafast optical excitation"

October 12, 2020

Yoav William Windsor

Fritz-Haber Institute

”Plasmon-assisted channel of photoemission from metals" - October 5, 2020

Dino Novko

Institute of Physics, Zagreb

"Uncovering the nature of magnetization dynamics and nonlinear optical phenomena in quantum materials"

September 28, 2020

Prashant Padmanabhan

Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM

"Nanoscale hyperspectral mapping by using photo-induced force microscopy”

September 21, 2020

Junghoon Jahng

Korea Research Institute of Standards and Science

"Optical Spectroscopy and Microscopy with a Scanning Tunneling Microscope"

September 14, 2020

Shaowei Li

Assistant Professor

Department of Chemistry and Biochemistry, University of California, San Diego

"Phase competition and photoinduced order in a charge density wave family" - August 31, 2020

Dr. Alfred Zong

Miller Fellow, Department of Chemistry, University of California, Berkeley

"Photoelectric effect with a twist" - August 24, 2020

Prof. Jamal Berakdar

Martin-Luther Universität Halle-Wittenberg, Halle (Saale), Germany

“Imaging of N2-K interactions at the atomic scale” - August 17, 2020

Dr. Chao Zhang

Laboratory of Ultrafast Dynamics, Department of Physics & Astronomy, University of Pittsburgh

"Visually constructing the chemical structure of a single molecule by scanning Raman picoscopy"

August 10, 2020

Dr. Yao Zhang

Hefei National Laboratory for Physical Sciences at the Microscale, USTC, China

[August 3, 2020, session cancelled because of family childbirth.]

"Large scale production and light induced dynamics of two dimensional semiconductors"

July 27, 2020

Fang Liu

Department of Chemistry, Stanford University

"Multidimensional photoelectron spectroscopy of TMDCs with ultrafast XUV pulses: Driving ultrafast dynamical Lifshitz transition and probing hidden orbital-texture" - July 20, 2020

Dr. Sam Beaulieu

Structural & Electronic Surface Dynamics Group, FHI-Berlin

"Orbital Imaging: high-resolution molecular orbitals from photoelectron momentum microscopy"

July 13, 2020

Dr. Matthijs Jansen

I. Physikalisches Institut, Georg-August-Universitaet Goettingen

"Nonequilibrium Dynamics of Collective Excitations in Quantum Materials"  - July 6, 2020

Dr. Edoardo Baldini

Department of Physics, Massachusetts Institute of Technology

"Recent developments on ab initio non-adiabatic molecular dynamics by real-time GW-BSE"

10:00 AM, June 29, 2020

Prof. Jin Zhao

Department of Physics, University of Science & Technology of China

"Manipulating quantum states by photoexcitation in 2D materials" - 10:00 AM, June 22, 2020

Prof. Sheng Meng

The Institute for Physics, Chinese Academy of Science

"Coupling free-electrons and whispering gallery modes" - June 15, 2020

Dr. Ofer Kfir

4th Physical Institute and Institute for X-ray Physics, Georg-August-University of Göttingen

"Ultrafast terahertz microscopy: from near fields to single atoms" - 10:30 AM, June 8, 2020

Prof. Tyler Cocker

Department of Physics and Astronomy, Michigan State University

"Topological Spin Textures in Plasmonic Vortices" - June 2, 2020

Yanan Dai

Postdoctoral Scientist, Department of Chemistry, XYZ Group, Columbia University

"A momentum-resolved view of phonon dynamics in black phosphorus" - May 25, 2020

Hélène Seiler

Postdoctoral Researcher, Department of Physical Chemistry (Ernstorfer group)

Fritz-Haber Institute, Berlin, Germany

"Plasmonic Photoelectron Response of Low-Index Silver Surfaces" - May 18, 2020

Andi Li

Doctoral Student in the Laboratory of Ultrafast Dynamics, Department of Physics & Astronomy, University of Pittsburgh

"A New Bismuth Nanostructure: Toward Realization of Symmetry Guaranteed Dirac-Line under Strong Spin-Orbit Coupling" - May 11, 2020

Dr. Min Feng

Professor, Laboratory of Microscopic Surface Science, School of Physics and Technology, School of Physics and Technology, Wuhan University, Wuhan, China

"How to dress a metal" - May 4, 2020

Dr. Marcel Reutzal

Research Associate, Georg-August-University of Göttingen

"ZnO: Photodoping" - April 27, 2020

Lukas Gierster

Doctoral Student in Dr. Julia Stähler’s group, Fritz Haber Institute, Berlin, Germany

"Resonant charge transfer at molecule/substrate interfaces" - April 20th, 2020

Dr. Shijing Tan

Professor, Hefei National Laboratory for Physical Sciences at the Microscale, USTC, China.

In this spirit we open the

In 17th Century Europe, coffee beans imported from Ethiopia stimulated a new forum, coffee houses, for exchanging ideas on science and commerce with impacts that can still be felt today.

With COVID-19 our opportunities for one-to-one communication have been dramatically curtailed, but this disruption has provoked wireless communication spanning the globe.

International Ultrafast Knowledge Coffee House

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